1ad218f3af
As our implementation of MCP411 nears completion and we begin to solicit testing, it's no longer reasonable to expect testers to type or remember `BikeshedIntrinsicFrom`. The name degrades the ease-of-reading of documentation, and the overall experience of using compiler safe transmute. Tentatively, we'll instead adopt `TransmuteFrom`. This name seems to be the one most likely to be stabilized, after discussion on Zulip [1]. We may want to revisit the ordering of `Src` and `Dst` before stabilization, at which point we'd likely consider `TransmuteInto` or `Transmute`. [1] https://rust-lang.zulipchat.com/#narrow/stream/216762-project-safe-transmute/topic/What.20should.20.60BikeshedIntrinsicFrom.60.20be.20named.3F
32 lines
831 B
Rust
32 lines
831 B
Rust
// ICE Inconsistent rustc_transmute::is_transmutable(...) result, got Yes
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// issue: rust-lang/rust#110969
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#![feature(adt_const_params, generic_const_exprs, transmutability)]
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#![allow(incomplete_features, unstable_features)]
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mod assert {
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use std::mem::TransmuteFrom;
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pub fn is_transmutable<Src, Dst, Context, const ASSUME: std::mem::Assume>()
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where
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Dst: TransmuteFrom<Src, Context, ASSUME>,
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//~^ ERROR trait takes at most 2 generic arguments but 3 generic arguments were supplied
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{
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}
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}
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fn via_associated_const() {
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struct Context;
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#[repr(C)]
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struct Src;
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#[repr(C)]
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struct Dst;
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trait Trait {
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const FALSE: bool = assert::is_transmutable::<Src, Dst, Context, {}>();
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//~^ ERROR mismatched types
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//~| ERROR mismatched types
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}
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}
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pub fn main() {}
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